Consolidated Statement Of Income
| Concept | 2024-07-01 to 2024-12-31 | 2024-07-01 to 2024-12-31 | 2024-07-01 to 2024-12-31 | 2024-07-01 to 2024-12-31 | 2024-07-01 to 2024-12-31 | 2023-07-01 to 2023-12-31 | 2023-07-01 to 2023-12-31 | 2023-07-01 to 2023-12-31 | 2023-07-01 to 2023-12-31 | 2023-07-01 to 2023-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||
| Statement of income | ||||||||||
| Net sales | 
                                                215,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,861,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,077,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,077,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                325,403,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,702,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,027,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,027,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | — | — | — | — | 
                                                1,632,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,690,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||
| Selling, general and administrative expenses | — | — | — | — | 
                                                1,104,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,065,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Provision of allowance for doubtful accounts | — | — | — | — | 
                                                3,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||
| Other operating expenses | ||||||||||
| Operating expenses | ||||||||||
| Ordinary profit (loss) | — | — | — | — | 
                                                343,674,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                274,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net sales | ||||||||||
| Gross profit (loss) | — | — | — | — | 
                                                1,444,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,337,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating profit (loss) | 
                                                -7,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                347,197,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                339,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                339,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                64,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                272,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                272,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||
| General and administrative expenses | ||||||||||
| Non-operating income | ||||||||||
| Interest income | — | — | — | — | 
                                                1,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividend income | — | — | — | — | 
                                                7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | — | — | — | — | 
                                                3,274,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating income | — | — | — | — | 
                                                12,075,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                13,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cost of sales | ||||||||||
| Selling, general and administrative expenses | ||||||||||
| Non-operating expenses | ||||||||||
| Interest expenses | — | — | — | — | 
                                                3,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | — | — | — | — | 
                                                3,255,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | — | — | — | — | 
                                                8,069,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                12,137,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | — | — | — | — | 
                                                10,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) before income taxes | — | — | — | — | 
                                                332,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                269,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Gross profit | ||||||||||
| Income taxes - current | — | — | — | — | 
                                                89,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                70,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | ||||||||||
| Income taxes - deferred | — | — | — | — | 
                                                33,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                43,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes | — | — | — | — | 
                                                123,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                114,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) | — | — | — | — | 
                                                209,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                154,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) attributable to non-controlling interests | — | — | — | — | 
                                                5,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | 
                                                203,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                148,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit attributable to | ||||||||||
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | — | 
                                                -36,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -7,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other comprehensive income | — | — | — | — | 
                                                -36,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -7,464,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income | — | — | — | — | 
                                                173,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                147,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | — | 
                                                167,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                141,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | — | 
                                                5,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,961,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |